Hours had been spent by Adolf Hitler and Albert Speer poring over the sketches, models, and plans for the new Berlin. They mapped out a new city boulevard right through Berlin, the North-South axis, which they crowned with a two hundred meters wide and one hundred meters high triumphal arch.
Sagging
The colossus weighs 12,650 tons, as much as the load of a pillar of the intended triumphal arch. The foundations extend up to 18 meters deep underground.
Yet after three years the concrete cylinder had already sunk eighteen centimeters. Too much to be good.